They really don't.So, if everybody masters the material A I can say A's on the house.

他们真的不知道，如果每个人都掌握了知识,那么我敢说，人人可得。

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So it really, you know, becoming familiar with the different methods is best done through experience, not through books.

所以，真的，你知道，熟练掌握不同的方法最好是通过经验，而不是通过书。

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Anyway, the story ends and Nala goes back and is now armed with probability theory, we assume.

不管怎样,在故事结尾,那勒回去了,我们知道他已经掌握了概率论的知识

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How do we explain when babies come to know things that they didn't originally know?

我们如何解释,婴儿何时掌握了原本并不知道的知识

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for exam 2, you still need to know and understand everything you learned in exam 1, but you can put off learning it completely until we get through, at least, next Wednesday before we start maybe spending time on these concepts outside of class.

为了掌握第二次考试的内容，你仍然需要知道和理解,在第一次考试前所学的全部知识，但是你可以先放一放，等到我们进行到，至少在下周三我们可能开始不在课堂上,讲这些内容之前。

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So what I decided is that you need to know the whole book in the sense that you need to know all of the key terms and key points.

所以我决定了,我把掌握整本书的要求改为,你需要知道所有的关键词和关键点

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